Spare us all from crap cable! The race to the bottom of the junk pile.

I had a collection of regular screw in F-plugs, accumulated over the years. One was smaller diameter than the rest and would fit RG58 cable, but not regular CT100 or RG6. It may have been left around when Sky installed my first HD box back in 2006 or so. The installer was using shotgun cable at the time. I think that might be like the newer WF65 . I've only ever used CT100 or copper RG6 subsequently.